IHeartRadio announced Monday that the tour will kick off Dec. 1 in Dallas with One Direction, Calvin Harris and Demi Lovato, and visit Los Angeles, Philadelphia, Boston, Chicago, New York and Washington, D.C. before concluding on Dec. 19 in Tampa, Florida.

The lineup of performers varies for each city, though roughly 10 acts will hit the stage at each show.

Tickets go on sale on Oct. 12.

The Dec. 11 show at New York’s Madison Square Garden will stream on Yahoo! and air as a 90-minute special on the CW Network on Dec. 17.